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    參數(shù)資料
    型號: RX-5412SF: B3 PURE SN
    廠商: EPSON
    文件頁數(shù): 1/1頁
    文件大?。?/td> 0K
    描述: IC REAL TIME CLOCK 24-SOP
    標準包裝: 1
    類型: 時間事件記錄器
    特點: 警報器,閏年,SRAM,監(jiān)視計時器
    時間格式: HH:MM:SS(24 小時)
    數(shù)據(jù)格式: YY-MM-DD-dd
    接口: SPI
    電源電壓: 2.5 V ~ 5.5 V
    電壓 - 電源,電池: 1.4 V ~ 5.5 V
    工作溫度: -40°C ~ 85°C
    安裝類型: 表面貼裝
    封裝/外殼: 24-SOP(0.209",5.30mm 寬)
    供應(yīng)商設(shè)備封裝: 24-SOP
    包裝: 標準包裝
    其它名稱: SER3777DKR
    Actual size
    http://www.epsontoyocom.co.jp
    Real time clock module
    Epson Toyocom
    Product Number (Please contact us)
    X1B000082xxxx00
    Built-in EVENT RECORDER FUNCTION
    SERIAL-INTERFACE REAL TIME CLOCK MODULE
    RX - 5412 SF
    Built in frequency adjusted 32.768 kHz crystal unit.
    Interface Type
    : 4-wire serial interface
    Operating voltage range
    : 2.5 V to 5.5 V
    Wide Timekeeper voltage range
    : 1.4 V to 5.5 V
    Low backup current
    : 0.5
    μA / 3 V ( Typ. )
    Built-in SRAM
    : Built-in 2048 bit ( 8 bit
    × 256 )
    The various functions include full calendar, alarm, timer,
    event record, watch dog timer, automatic power switching function.
    Block diagram
    Overview
    Event recorder function
    4 input ports are available for event recorder request.
    Event recorder data are recorded in inside memory according to user setting.
    Power switching circuit
    When VDD voltage are down, real time clock module power source are
    switched to VBAT from VDD.
    Built-in SRAM (256 bytes)
    Available built in SRAM for users memory and event recorder memory.
    Watch dog timer function
    Watch dog time, it can set from 1.95 ms to 468.75 ms
    Voltage drop detection
    When real time clock module return from backup mode, this function indicate
    The reliability of real time clock module data.
    Periodic timer function
    In a timer period, it can set from 1/4096 seconds to 4095 minutes.
    Alarm function
    Alarm by combination of day of week, day, hours, and minutes.
    :I/O(VDD Voltage Operation)
    :I/O(VDD&VBK Voltage Operation)
    Pin Function
    External dimensions
    (Unit:mm)
    Specifications (characteristics)
    *Refer to application manual for details.
    Electrical Characteristics
    Item
    Symbol
    Condition
    Min.
    Typ.
    Max.
    Unit
    Power voltage
    VDD
    2.5
    3.0
    5.5
    V
    Clock voltage
    VCLK
    1.4
    3.0
    5.5
    V
    Operating temperature
    TOPR
    40
    +25
    +85
    °C
    Frequency tolerance
    Δ f / f
    Ta = +25
    °C, VDD = 3.0 V
    5
    ± 23 *
    × 106
    Current Consumption
    IDD1
    Back up operation , CE = GND , /IRQ = OFF
    VBK=5 V
    0.5
    1.0
    A
    IDD2
    VBK=3 V
    0.5
    1.0
    *Equivalent to 1 minute of monthly deviation.
    Signal
    name
    Pin
    No.
    I / O
    Function
    Signal
    name
    Pin
    No.
    I / O
    Function
    VSS
    1
    -
    GND
    (VSS)
    24
    -
    EVENT0
    2
    Input
    Event input
    (VSS)
    23
    -
    EVENT1
    3
    Input
    Event input
    (VSS)
    22
    -
    VBK
    4
    -
    Backup power supply
    (VSS)
    21
    -
    EVENT2
    5
    Input
    Event input
    (VSS)
    20
    -
    (VSS)
    6
    -
    (VSS)
    19
    -
    EVENT3
    7
    Input
    Event input
    /S-IRQ1
    18
    Output
    Event record interrupt output
    (open drain)
    CE
    8
    Input
    Chip enabled input
    /S-IRQ0
    17
    Output
    Event record interrupt output
    (open drain)
    CLK
    9
    Input
    Clock input pin for serial data
    transmission
    WDI
    16
    Input
    Watch dog input
    (open drain)
    DO
    10
    Output
    Data output pin for serial data
    transmission
    /WDO
    15
    Output
    Watch dog output
    (open drain)
    DI
    11
    Input
    Data input pin for serial data
    transmission
    N.C.
    14
    -
    /R-IRQ
    12
    Output
    RTC function interrupt output
    (open drain)
    VDD
    13
    -
    Power supply
    Interrupts & Reset
    Controller
    Alarm
    OSC
    Bus
    Interface
    Circuit
    CLK
    32.768 kHz
    Control
    System
    Divider
    Clock
    Digital
    Trimming
    /S-IRQ0,1
    D I
    Timer
    EVENT0~3
    Calendar
    DO
    /R-IRQ
    CE
    Controller
    Register
    Voltage
    Detector
    Switching
    Circuit
    VDD
    VBK
    and
    Register
    Internal
    VDD
    RAM
    2 k bit
    ( 8 x 256 )
    Event Record
    Register
    Event Input
    Detector
    WDI
    /WDO
    Register
    Watch Dog
    Interrupts
    Controller
    4
    2
    #12
    #1
    10.2
    ± 0.3
    #24
    #13
    5.4
    7.
    8
    ±0.
    3
    0.5
    0.15
    0
    ° - 10°
    R5412
    E M12 3A
    0.8
    2.0 Max.
    0.36
    0 Min.
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